CN108300520B - Method for increasing content of straw in oil - Google Patents
Method for increasing content of straw in oil Download PDFInfo
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- CN108300520B CN108300520B CN201711393201.2A CN201711393201A CN108300520B CN 108300520 B CN108300520 B CN 108300520B CN 201711393201 A CN201711393201 A CN 201711393201A CN 108300520 B CN108300520 B CN 108300520B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/08—Drying or removing water
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/28—Cutting, disintegrating, shredding or grinding
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/30—Pressing, compressing or compacting
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/32—Molding or moulds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Oil, Petroleum & Natural Gas (AREA)
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Agronomy & Crop Science (AREA)
- Processing Of Solid Wastes (AREA)
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Abstract
The invention belongs to the technical field of biomass recycling, and particularly relates to a method for improving the content of straws in oil, which comprises the following steps: (1) drying and dehydrating the collected straws, and then crushing the straws until the median particle size (D50) is 100-300 mu m; (2) compressing and molding the crushed straws obtained in the step (1) at the compression pressure of 0.5-3MPa and the compression temperature of 30-60 ℃; (3) crushing the straws compressed and molded in the step (2) again, and crushing the straws until the median particle size (D50) is 30-50 mu m to obtain straw powder; (4) and (4) proportionally mixing the straw powder obtained in the step (3) with oil, grinding and pulping to obtain slurry with the concentration of 30-60 wt%. The method provided by the invention enables the solid content of the straw in the oil to reach 30-60 wt%, the viscosity of the slurry is only 500-1400 mPa.s (50 ℃), the slurry has good slurry forming property and high fluidity, the transportation is convenient, the feeding requirement of the subsequent treatment process is met, and the utilization efficiency of the device is improved.
Description
Technical Field
The invention belongs to the technical field of biomass recycling, and particularly relates to a method for improving the content of straws in oil.
Background
The straws are the most abundant and cheapest biomass energy in the world, but are not fully utilized, only 7 hundred million tons of crop straws, agricultural product chaffs and the like exist in China every year, and a large amount of straws are burned on the spot or discarded everywhere, so that not only are valuable resources wasted and the environment polluted, but also a lot of hazards are brought, such as fire disasters, atmospheric pollution, soil environment damage and the like are caused, and the ecological environment in which human beings rely on to live is seriously influenced. The plant straw thermal cracking technology can convert low-grade biomass energy into high-quality liquid fuel or gas fuel. The cellulose is used as the most main component of biomass, and the thermal cracking of the cellulose is beneficial to improving the conversion and utilization level of biomass energy in China and promoting the development and utilization of the biomass energy. At present, petroleum resources are increasingly heavy and inferior, heavy and inferior petroleum is mainly subjected to further coking, catalytic cracking or hydrocracking to produce light distillate oil, and the processing cost is higher due to poor quality of raw materials. In addition, waste oil in industry and life, such as waste lubricating oil, waste cooking oil and the like, cannot be well recycled, and is also an important reason for energy shortage, and the common characteristic of the oil products is complex components. Researches find that the components such as the naphthenic hydrocarbon in the oil product can interact with cellulose in plant straws to promote thermal cracking, so that the yield of the liquid oil is improved.
Therefore, chinese patent document CN103242871A discloses a heavy oil-biomass hydrogenation co-liquefaction process, which is to pre-crush dried biomass to 40-100 mesh, mix with heavy oil to form slurry, wherein the biomass (straw) accounts for 5-20% of the heavy oil, add a catalyst and a vulcanizing agent into the slurry, then place the slurry in a slurry bed hydrogenation reactor, control the reaction temperature to 370-430 ℃ and the hydrogen partial pressure to 4-8MPa, perform hydrogenation thermal cracking reaction, fractionate the reaction product to obtain bio-oil and coke. According to the process, the heavy oil and the straws are mixed for hydrogenation liquefaction, so that the conversion rate of the straws can reach over 90 wt% and the yield of the oil phase is over 70 wt%, and the efficient conversion of biomass energy in the straws is realized. However, in the process, the crushed straws and the heavy oil are directly mixed, and the content of the straws in the slurry is low, so that the utilization efficiency of the hydrogenation device is low. Therefore, in order to improve the utilization rate of the device, how to improve the solid content of the straw in the straw + oil slurry becomes a technical problem to be solved urgently for technical personnel in the field.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of low solid content of the straw in the straw and oil slurry in the prior art, thereby providing a method for improving the content of the straw in the oil.
A method for increasing the content of straws in oil comprises the following steps:
pretreatment of raw materials: collecting straws, controlling the water content to be lower than 2 wt%, and then crushing the straws to the median particle size of 100-;
compression: compressing and molding the crushed straws at the compression pressure of 0.5-3MPa and the compression temperature of 30-60 ℃;
crushing: crushing the compressed and molded straws again to obtain straw powder with median particle size D50 of 30-50 μm;
pulping: mixing the straw powder and the oil in proportion, grinding and pulping to obtain 30-60 wt% slurry. Preferably, the slurry has a concentration of 55 to 60 wt%.
Further, drying and dehydrating are adopted to control the moisture content of the straws, wherein the drying and dehydrating temperature is 50-70 ℃, and the drying and dehydrating time is 3-5 h.
Further, the compression molding is tablet molding, briquetting molding or layering molding. Further, compression molding may be performed using a tablet press, a briquetting machine, or a plodder.
Further, the bulk density of the compressed and crushed straw is 400-3。
Further, the crushing process is hammer mill crushing, ball mill crushing, rod mill crushing, ultramicro crushing or airflow crushing. The pulverization can be carried out by a hammer mill, a ball mill, a rod mill, an ultrafine pulverizer, a jet mill, or the like.
Further, the grinding pulping is stirring pulping, dispersing pulping, emulsifying pulping, shearing pulping, homogenizing pulping or colloid milling pulping. The grinding pulping adopts equipment such as a stirrer, a mixer, a disperser, an emulsifying machine, a shearing machine, a homogenizer, a grinder or a colloid mill.
Further, the grinding and pulping time is 8-15 minutes.
Further, the mass ratio of the straw powder to the oil in the pulping step is 30-50: 50-70.
Further, the viscosity of the resulting slurry was 500-1400 mPas (50 ℃ C.).
Further, the oil is one or more of illegal cooking oil, rancid oil, waste lubricating oil, waste engine oil, heavy oil, residual oil, wash oil, anthracene oil and the like.
Furthermore, the straws are one or more of grain crop straws, oil crop straws, cotton straws, tobacco straws, hemp straws, sugar crop straws and the like, wherein the grain crop straws comprise rice, wheat, barley, corn, soybean, silkworm pea, potato straws and the like, and the oil crop straws comprise peanut, rapeseed, sesame straws and the like, the cotton straws, the tobacco straws, the hemp straws and the sugar crop straws are mainly sugarcane straws.
The technical scheme of the invention has the following advantages:
1. the method for improving the content of the straws in the oil provided by the invention has the advantages that the solid content of the straws in the oil reaches 30-60 wt% through the process flow of dehydrating, crushing, compressing, crushing again and grinding for pulping, and the viscosity of the slurry is only 500-1400 mPa.s (50 ℃). The process can lead straw material particles to be mechanically embedded under the mechanical action through the matching of all the steps, particularly the control of the granularity in the two crushing steps and the control of the compression and grinding pulping steps, the cellulose and lignin structures are damaged and intertwined, the gaps among the particles are greatly reduced, the materials are tightly combined, and the method can drive a large amount of air in the gaps, thereby improving the solid content of the obtained slurry, reducing the viscosity of the slurry, having good fluidity, being convenient for conveying, meeting the feeding requirement of the subsequent treatment process and improving the utilization efficiency of the device. And the process is simple, no additional additive is needed, the transportation cost of the raw materials is greatly reduced, and the method is economic and environment-friendly.
2. The method for improving the content of the straw in the oil can realize the adjustment of the viscosity of the slurry by controlling parameters such as the temperature and the pressure of raw material compression, the granularity of re-crushing and the like. Along with the improvement of compression pressure and temperature, the inside pore structure of material is destroyed more thoroughly, and the moisture that contains significantly reduces combines between the material to be compacter, and material bulk density is high after the compression, more is favorable to the transportation. Meanwhile, with the control of the re-crushing granularity, the solid-liquid combination is better when the slurry is prepared, so that the viscosity of the slurry is reduced, and the overall fluidity of the slurry is increased.
Detailed Description
Example 1
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected corn straws at the drying temperature of 60 ℃ for 4 hours, and then crushing the corn straws to 100 microns in median particle size (D50) by using a ball mill;
(2) compressing and molding the crushed straws obtained in the step (1) by adopting a tablet press, wherein the compression pressure is 3MPa, and the compression temperature is 30 ℃;
(3) crushing the straws compressed and molded in the step (2) again by using a ball mill until the median particle size (D50) is 50 mu m to obtain straw powder with the bulk density of 400kg/m3；
(4) And (3) mixing 30kg of straw powder obtained in the step (3) with 70kg of swill-cooked dirty oil, and grinding and pulping by using a stirrer for 8min to obtain 30 wt% slurry.
Example 2
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected wheat straws at the drying temperature of 55 ℃ for 4.5h, and then grinding the wheat straws by adopting a hammer mill until the particle size of the median particle size (D50) is 300 mu m;
(2) compressing and molding the crushed straws obtained in the step (1) by a plodder, wherein the compression pressure is 0.5MPa, and the compression temperature is 60 ℃;
(3) crushing the straws compressed and molded in the step (2) again by adopting a hammer mill to obtain straw powder with the median particle size (D50) of 30 mu m and the bulk density of 300kg/m3；
(4) And (4) mixing 50kg of straw powder obtained in the step (3) with 50kg of washing oil, grinding and pulping to obtain slurry with the concentration of 50 wt%.
Example 3
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected peanut straws at the temperature of 50 ℃ for 5 hours, and then crushing the peanut straws into particles with the median particle size (D50) of 200 mu m by using a jet mill;
(2) compressing and molding the crushed straws obtained in the step (1) by adopting a tablet press, wherein the compression pressure is 1MPa, and the compression temperature is 40 ℃;
(3) crushing the straws compressed and molded in the step (2) again by using a jet mill, and crushing the straws until the median particle size (D50) is 40 mu m to obtain straw powder with the bulk density of 350kg/m3；
(4) Grinding and pulping 35kg of straw powder obtained in the step (3) and 65kg of waste engine oil to obtain slurry with the concentration of 35 wt%.
Example 4
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected straws at the temperature of 70 ℃ for 3h, and then crushing the straws to 150 mu m in median particle size (D50) by using an ultrafine crusher;
(2) compressing and molding the crushed straws obtained in the step (1) by a plodder, wherein the compression pressure is 2MPa, and the compression temperature is 50 ℃;
(3) the straws compressed and molded in the step (2) are crushed again by an ultrafine crusher until the median particle size (D50) is 35 mu m to obtain straw powder with the bulk density of 500kg/m3；
(4) And (4) mixing the 45kg of straw powder obtained in the step (3) with 55kg of rancid oil, grinding and pulping to obtain slurry with the concentration of 45 wt%.
Example 5
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected wheat straws at the temperature of 60 ℃ for 4h, and then crushing the wheat straws to 200 mu m with a median particle size (D50) by using an ultrafine crusher;
(2) compressing and molding the crushed straws obtained in the step (1) by a plodder, wherein the compression pressure is 2.5MPa, and the compression temperature is 50 ℃;
(3) crushing the straws compressed and molded in the step (2) again by using a jet mill until the median particle size (D50) is 30 mu m to obtain straw powder with the bulk density of 500kg/m3；
(4) And (4) mixing the 60kg of straw powder obtained in the step (3) with 40kg of illegal cooking oil, and grinding and pulping by adopting a colloid mill for 15 minutes to obtain slurry with the concentration of 60 wt%.
Example 6
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected corn straws and soybean straws at 65 ℃ for 5 hours, and then ball-milling and crushing the corn straws and the soybean straws into particles with the median particle size (D50) of 250 microns;
(2) compressing and molding the crushed straws obtained in the step (1) by adopting a tablet press, wherein the compression pressure is 2.5MPa, and the compression temperature is 35 ℃;
(3) crushing the straws compressed and molded in the step (2) again by using a rod mill until the median particle size (D50) is 45 mu m to obtain straw powder with the bulk density of 480kg/m3；
(4) And (4) mixing 46kg of straw powder obtained in the step (3) with 54kg of residual oil, and grinding and pulping by using a dispersion machine, wherein the grinding and pulping time is 8 minutes, so that slurry with the concentration of 46 wt% is obtained.
Example 7
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected straws at the temperature of 70 ℃ for 3h, and then crushing the straws to 150 mu m in median particle size (D50) by using an ultrafine crusher;
(2) compressing and molding the crushed straws obtained in the step (1) by a plodder, wherein the compression pressure is 2MPa, and the compression temperature is 50 ℃;
(3) the straws compressed and molded in the step (2) are crushed again by an ultrafine crusher until the median particle size (D50) is 35 mu m to obtain straw powder with the bulk density of 500kg/m3；
(4) And (4) mixing the straw powder of 55kg and rancid oil of 45kg in the step (3), grinding and pulping to obtain slurry with the concentration of 55 wt%.
Comparative example 1
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected wheat straws at the temperature of 60 ℃ for 4h, and then crushing the wheat straws to obtain straw powder with the median particle size (D50) of 30 mu m by using an ultrafine crusher;
(2) mixing the 50kg of straw powder obtained in the step (1) with 50kg of illegal cooking oil, and grinding and pulping by using a colloid mill for 15 minutes to obtain a mixture (not slurried) with the concentration of 50 wt%.
Comparative example 2
A method for increasing the content of straws in oil comprises the following steps:
(1) drying and dehydrating the collected wheat straws at the temperature of 60 ℃ for 4h, and then crushing the wheat straws to 200 mu m with a median particle size (D50) by using an ultrafine crusher;
(2) compressing and molding the crushed straws obtained in the step (1) by a plodder, wherein the compression pressure is 2.5MPa, and the compression temperature is 50 ℃;
(3) and (3) roughly crushing 50kg of straws compressed and molded in the step (2) into particles with the particle size of 1-3mm, then proportionally mixing the particles with 50kg of illegal cooking oil, and grinding and pulping by adopting a colloid mill for 15 minutes to obtain slurry with the concentration of 50 wt%.
And (3) viscosity testing:
the slurries obtained in examples 1 to 6 of the present invention and the slurries obtained in comparative examples 1 to 2 were subjected to viscosity measurement by the following method: the measurements were carried out using the method specified in GB/T18856.4-2008, heating thermostatically with an oil bath instead of the water bath in the standard, in order to obtain viscosity data at higher temperatures, while reducing the limit of reproducibility to 20 mPas. The specific test results are shown in the following table:
table 1 sample viscosity test results
It can be seen from the data in the table that it is difficult to disperse the straw into the oil without compressing it.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. A method for increasing the content of straws in oil is characterized by comprising the following steps:
pretreatment of raw materials: collecting straws, controlling the water content to be lower than 2 wt%, and then crushing the straws to the median particle size of 100-;
compression: compressing and molding the crushed straws at the compression pressure of 0.5-3MPa and the compression temperature of 30-60 ℃;
crushing: crushing the compressed and molded straws again to obtain straw powder with median particle size D50 of 30-50 μm;
pulping: mixing the straw powder and the oil in proportion, grinding and pulping to obtain 30-60 wt% slurry.
2. The method for improving the content of the straws in the oil as claimed in claim 1, wherein the moisture content of the straws is controlled by drying and dehydrating at the temperature of 50-70 ℃ for 3-5 h.
3. The method for increasing the content of straws in oil as claimed in claim 1, wherein the compression molding is tablet molding, briquetting molding or briquetting molding.
4. The method for increasing the content of straws in oil as claimed in claim 1, wherein the bulk density of the compressed and re-pulverized straws is 400-500kg/m3。
5. The method for increasing the content of straws in oil as claimed in claim 1, wherein the pulverizing process is hammer mill pulverizing, ball mill pulverizing, rod mill pulverizing, ultramicro pulverizing or air flow pulverizing.
6. The method for increasing the content of straw in oil according to claim 1, wherein the grinding pulping is stirring pulping, dispersing pulping, emulsifying pulping, shearing pulping, homogenizing pulping or colloid milling pulping.
7. The method for increasing the content of straws in oil as claimed in claim 1, wherein the time for grinding and pulping is 8-15 minutes.
8. The method for improving the content of straw in oil according to claim 1, wherein the mass ratio of straw powder to oil in the pulping step is 30-50: 50-70.
9. The method for increasing the content of straws in oil as claimed in claim 1, wherein the concentration of the obtained slurry is 55-60 wt%.
10. The method for increasing the content of straw in oil as claimed in claim 1, wherein the viscosity of the obtained slurry is 500-1400 mPa-s when measured at 50 ℃.
11. The method for increasing the content of straws in oil as claimed in claim 1, wherein the straws are one or more of straws of food crops, straws of oil crops, cotton straws, tobacco straws, hemp straws and sugar crops.
12. The method for increasing the content of straws in oil as claimed in claim 1, wherein the oil is one or more of illegal cooking oil, rancid oil, waste lubricating oil, residual oil, wash oil and anthracene oil.
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| CN110240920A (en) * | 2019-05-08 | 2019-09-17 | 北京三聚环保新材料股份有限公司 | A kind of biomass matches paste-making method |
| GB2596952B (en) * | 2019-08-08 | 2022-07-06 | Mei Bai Hong | Process for producing solid biomass fuel |
| KR20220044891A (en) | 2019-08-08 | 2022-04-12 | 홍 메이 바이 | Solid biomass fuel production process |
| GB2586230B (en) * | 2019-08-08 | 2022-02-09 | Mei Bai Hong | Process for producing solid biomass fuel |
| GB2591789A (en) * | 2020-02-06 | 2021-08-11 | Mei Bai Hong | Process for producing solid biomass fuel |
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| CN103242871A (en) * | 2013-05-28 | 2013-08-14 | 中国石油大学(华东) | Heavy oil and biomass hydrogenation coliquefaction treatment process |
| CN104531243A (en) * | 2014-12-30 | 2015-04-22 | 江苏健神生物农化有限公司 | Emulsified slurry oil and preparing method thereof |
| CN104927948A (en) * | 2015-06-16 | 2015-09-23 | 神华集团有限责任公司 | Water coal slurry preparing method |
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